Module 2- Section 2-narrated

Module 2- Section 2: Module 2- Section 2 IV. Introduction to Ports
IV. Ports: IV. Ports Peripherals connected externally to the PC connect to the mainboard through a port. Look at the front and back (and sometimes- even the sides!) of your PC. Any place that you can connect something to is a port.
PowerPoint Presentation: Port: a. a port provides access to circuitry inside a PC b. a port usually has a specific connector associated with it – this connector is found on the back (or elsewhere) of the case
PowerPoint Presentation: Types of ports found on a PC are (to name a few): Serial port Parallel port USB port Keyboard port
PowerPoint Presentation: A computer technician (or anyone working in IT) should be able to look at a PC and identify all of the ports that it has. Knowing the type of ports a PC has is important to knowing what can be connected to it.
PowerPoint Presentation: Ports are associated with specific connectors. It is important to know both the name of the port and the name of the connector.
PowerPoint Presentation: Each type of port supports a specific set of peripherals. Ports conform to standards that specify the connector type, cable lengths, and speed (as well as other things). Standards will be addressed in more detail throughout the semester.
PowerPoint Presentation: For now, we will concentrate on being able to identify a port and its connectors. Please pay particular attention to the pictures of the connectors on the following slides.
A. The Serial Port: A. The Serial Port While less important to the PC as it once was, identification of the serial port is still important. Serial ports may be used for specialized equipment in the graphics and manufacturing industries.
PowerPoint Presentation: The serial port has two connectors associated with it. These connectors have both a technical and a common name. The designation of “P” in the technical name and the designation of “male” in the common name refers to the fact that the connector has pins at the PC .
Table of Serial Ports: Table of Serial Ports Technical Name Common Name DB25P 25-pin male DB9P 9-pin male
PowerPoint Presentation: The “P” designation in the connector is not always used, so it is appropriate to call the connector associated with the serial port the DB9. It would also be appropriate to call it a 9-pin male connector. 12
Serial Port (Fig 9-35 of Andrews 6th ed.): Serial Port (Fig 9-35 of Andrews 6 th ed.) Note that there are TWO serial ports in this figure.
25-pin to 9-pin adapter (about $5): 25-pin to 9-pin adapter (about $5) 14
B. Parallel Port: B. Parallel Port This port is not as important any more- however, you may still find this port on a PC. Please keep in mind that you never know where you may work or what you may encounter in the real world.
PowerPoint Presentation: A parallel port has only one connector type. The connector at the PC is socketed, so the connector is the DB25S. This connector may also be called the DB25 OR the 25-pin female connector. 16
PowerPoint Presentation: Note that the next slide shows the parallel port with the DB25S connector, both serial connectors and a 15-pin socket connector that we have not discussed yet.
Parallel Port (Fig 9-35 of 6th Edition): Parallel Port (Fig 9-35 of 6 th Edition)
PowerPoint Presentation: Again- This is a parallel port using a DB25S or a 25 pin female connector. Know the correct name of the port and of the connector associated with the port. Note: it is NOT a parallel connector, nor is it a DB25S port! Keep it straight!
C. Keyboard and Mouse Ports (DIN Style): C. Keyboard and Mouse Ports (DIN Style) The standard today for the keyboard and mouse is USB, however, that was not always the case. Even today, a PC may have a specific keyboard port and a specific mouse port which use a round connector known as the mini-DIN.
PowerPoint Presentation: The keyboard port uses a 6-pin mini-DIN connector (this is its technical name). DIN stands for German industry standard.
PowerPoint Presentation: Since about the mid 1990s, keyboards using the 6-pin mini-DIN connector have been available, and may still be in use. The mouse port also used the 6-pin mini-DIN. It is typically light green in color.
PowerPoint Presentation: As an aside, originally, PCs used a mouse connected to the serial port. The IBM PS/2 model PC was the first to use the 6-pin mini-DIN for both the keyboard and mouse, thus the mini-DIN is also referred to as a PS/2 connector .
PowerPoint Presentation: Some manufacturers color-code the 6-pin mini-DIN connectors to eliminate connection errors. The standard colors are lime green for the mouse port and violet for the keyboard port .
PowerPoint Presentation: Sketches of the mouse and keyboard connectors are screen printed onto most cases to also aid in connection of these ports. The next slide shows the keyboard and mouse ports in the left of the picture. Which is which?
D. Video Ports: D. Video Ports There are two main types of video port- analog and digital. These ports are distinguished by their connectors.
PowerPoint Presentation: A VGA video port is an anlog vide port and uses uses a DB15SHD (which is the technical name) or a 15-pin female high density (the common name) connector. Note that it is important to use the term high density when describing this connector.
PowerPoint Presentation: A DVI Video Port (Digital Visual Interface) is used with digital flat panel displays (typically LCD). It (typically) uses a DVI-D connector .
PowerPoint Presentation: The following slide shows both the VGA Video Port and the DVI Video Port. Note the difference in the two connector styles.
PowerPoint Presentation: Another type of video port is an S-video port. This port can be used to connect a TV via an S-video cable. It uses an S-video connector . Some video cards provide multiple video ports.
More Video!: More Video! Within the last several years HDMI, mini HDMI (portable or mobile devices), and DisplayPort have been features on some models. These cables support both digital video and audio. The first six pictures from Table 1-1 on page 3 of the textbook show video ports. 34
PowerPoint Presentation: 35 Table 1-1 Ports used with laptop and desktop computers
Figure 1-5 (page 7): Figure 1-5 (page 7) 36
E. USB: E. USB USB stands for universal serial bus and the port is referred to as the USB port. USB is the replacement for the serial and parallel port in most cases.
PowerPoint Presentation: The USB port on the case of a computer (may be on the back or front) uses a Series A connector .
Series A connector at the PC: Series A connector at the PC
PowerPoint Presentation: The cable that connects the device to the PC has a Series B that connects to the device (such as the printer). For smaller devices, the connection at the device side can be a micro-USB B OR a USB mini-b (5 pin).
USB Series A and B Male Connectors: USB Series A and B Male Connectors
Micro-USB B: Micro-USB B 42
USB Mini-b (5 pin): USB Mini-b (5 pin) 43
F. IEEE-1394 Port: F. IEEE-1394 Port The IEEE-1394 port is used for connecting video cameras and a fast version of an external hard drive. IEEE-1394 is also called Firewire .
PowerPoint Presentation: There are two Firewire port types, reflecting a difference in speed. Firewire 400 is an older standard and runs at a slower speed than Firewire 800.
PowerPoint Presentation: Firewire 400 ( which is IEEE-1394a) supports two different connector styles: the 4-pin which does NOT supply power to the device and the 6-pin which does supply power
PowerPoint Presentation: This next slide shows what these two connectors look like at the device end. To see what the connectors look like on the PC end, see Fig 9-11 on page 399 of the textbook.
PowerPoint Presentation: Firewire 800 (1394b) uses a square, 9-pin connector which supplies power to the device. This next slide shows two Firewire 800 ports and one Firewire 400 port that is using the (more standard) 6-pin connector.
Fig. 9-12: Fig. 9-12
PowerPoint Presentation: At the device end, there is a either a 6-pin or a 4-pin connector. The 4-pin connector does not supply power to the device whereas the 6-pin connector is.
G. Typical Sound Card Ports and Connections: G. Typical Sound Card Ports and Connections A sound card typically has several ports and connections. A common port found on a sound card is the game port. This is where joystick like devices or even a MIDI device (electronic keyboard- for example) can be connected.
PowerPoint Presentation: On the next slide, the Game Port is on the left-hand side of the picture. The technical name for the Game Port connector is the DB15S and the common name is the 15-pin female. Note that this is a socketed port AND that it is NOT high density (unlike the VGA Video Port which is).
PowerPoint Presentation: The place where the speakers and microphone are connected are called Sound Ports. The connectors for these ports are just referred to as jacks.
PowerPoint Presentation: The jacks on a sound card are colored coded: Color Port Blue Line In Pink Microphone light Green Line out (speaker) Black Rear out (amplifier) Yellow Center out (subwoofer)
PowerPoint Presentation: The only two colors that you would be expected to know are pink for the microphone and light green for the speaker.
PowerPoint Presentation: Another type of sound port is an S/PDIF port for digital sound. This port can be configured to use coaxial cable or optical cable. This port is shown on the next slide. 58
H. Network Ports: H. Network Ports Anything used to connect a network is called a Network Port. There are several connectors associated with network ports.
PowerPoint Presentation: The next slide shows a multi-purpose network card. Note that is accommodates three different connector style.
Network Connectors: Network Connectors
Network Ports: Network Ports The network port may use any of these connectors: BNC RJ-45 DB15S (same connector as the game port, but different function )
PowerPoint Presentation: The DB15S also can be called by its common name the 15-pin female. Other types of network interfaces exist- fiber and wireless, for example- and will be covered later.
PowerPoint Presentation: The most commonly used network is Ethernet- so it is not uncommon to refer to its port as the Ethernet Port. The Ethernet Port uses the RJ-45 connector (which is the technical name) which is also referred to as a “keystone” jack.
I. Phone Line Modem Port: I. Phone Line Modem Port
PowerPoint Presentation: The RJ-11 is known also a “keystone” jack. It is smaller than the RJ-45 used in networks. The modem and its RJ-11connector can be distinguished from a network connection in that the modem always has two RJ-11s.
PowerPoint Presentation: While the phone modem is almost completely obsolete, it is not impossible that you may run across one- so it is good to know what it is!
Modem Port (Phone Line) : Modem Port (Phone Line)